<?php
// +----------------------------------------------------------------------+
// | PHP Version 4														|
// +----------------------------------------------------------------------+
// | Copyright (c) 1997-2004 The PHP Group								|
// +----------------------------------------------------------------------+
// | This source file is subject to version 3.0 of the PHP license,	   |
// | that is bundled with this package in the file LICENSE, and is		|
// | available at through the world-wide-web at						   |
// | http://www.php.net/license/3_0.txt.								  |
// | If you did not receive a copy of the PHP license and are unable to   |
// | obtain it through the world-wide-web, please send a note to		  |
// | license@php.net so we can mail you a copy immediately.			   |
// +----------------------------------------------------------------------+
// | Authors: Aidan Lister <aidan@php.net>								|
// +----------------------------------------------------------------------+
//
// $Id: is_a.php,v 1.2 2005/11/21 10:57:23 ggiunta Exp $


/**
 * Replace function is_a()
 *
 * @category	PHP
 * @package	 PHP_Compat
 * @link		http://php.net/function.is_a
 * @author	  Aidan Lister <aidan@php.net>
 * @version	 $Revision: 1.2 $
 * @since	   PHP 4.2.0
 * @require	 PHP 4.0.0 (user_error) (is_subclass_of)
 */
if (!function_exists('is_a')) {
	function is_a($object, $class)
	{
		if (!is_object($object)) {
			return false;
		}

		if (get_class($object) == strtolower($class)) {
			return true;
		} else {
			return is_subclass_of($object, $class);
		}
	}
}

?>